Insert Firebird Database C#

Question

FbCommand fbCmm = 
      new FbCommand(\"INSERT INTO PRODUTO
                   (CODIGO,EAN,DESCRICAO,VAL_PRODUTO,VAL_CUSTO,CAT_PRECO)\" 
                   + \"Values (         


        

Answer 1

You're executing a parameterized query without providing values for those parameters. See the documentation:

FbCommand cmd = new FbCommand("insert into t1(id, text) values (@id, @text);");
cmd.CommandType = CommandType.Text;

cmd.Parameters.Add("@id", 123);
cmd.Parameters.Add("@text", "my string");

cmd.ExecuteNonQuery();

Here they bind the values 123 and "my string" to the parameters named id and text respectively.

Also note that parameter names are generally rescticted to alphanumeric, so txt_codigo.Text isn't likely going to work.